/Engine/Source/Runtime/AIModule/Classes/BehaviorTree/BlackboardComponent.h
class of value for given key
[TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UBlackboardKeyType](API\Runtime\AIModule\BehaviorTree\Blackboard\UBlackboardKeyType) > GetKeyType ( [FBlackboard::FKey](API\Runtime\AIModule\BehaviorTree\Blackboard\FKey) KeyID ) const